This is an extract from the State Highway Log that shows tunnels along State Routes. State Route identifiers and locations based on State Route Mileposts and Accumulated Route Mileage are also included for geographic reference and for use with the Washington State Department of Transportation's 24k and 500k Linear Referencing Systems.

Purpose:

To enable Geographic Information System users to more easily display and analyze a subset of the data contained in the State Highway Log in conjunction with the Washington State 24k and 500k Linear Referencing Systems.

Supplemental_Information:

Additional information can be found in the "State Highway Log", Electronic State Highway Log Data Definitions.doc, and the DOTarmcalc01.txt through the Point of Contact below. This data reflects the corresponding annually published State Highway Log Planning Report.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20141231

Time_of_Day: unknown

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Annually

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.078746

East_Bounding_Coordinate: -120.138558

North_Bounding_Coordinate: 48.703655

South_Bounding_Coordinate: 45.599645

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: State Highway Log

Theme_Keyword: Highway Data

Theme_Keyword: TRIPS

Theme_Keyword: Road Log

Theme_Keyword: State Route Data

Theme_Keyword: Tunnels

Access_Constraints: None

Use_Constraints:

The data contained within the State Highway Log is collected and updated using contract plans, field reviews and information provided by numerous WSDOT Regional and Headquarters offices as well as other county and city sources. Due to the diverse sources of this data, no accuracy statement is available. Also, this data may have changed since the publication date. If you find an error with this data and can provide updated information, please contact WSDOT at (360) 570-2361 or fax (360) 570-2400. We are continuously looking for sources to provide us with quality information.

Values were obtained from the Transportation Information and Planning Support (TRIPS) database.

Completeness_Report:

The data contained within the State Highway Log is collected and updated using contract plans, field reviews and information provided by numerous WSDOT Regional and Headquarters offices as well as other county and city sources over the course of a year. This data may have changed since the publication date. Only those records that have a RouteID (Route Identifier) found in the Washington State Highways at 24K Linear Referencing System can be graphically placed as events. RouteIDs that have been added or revised since the completeness date of the LRS will not place, nor will RouteIDs for road features not carried by the LRS.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Positional accuracy of this data set has not been determined

Lineage:

Process_Step:

Process_Description:

The excel spreadsheets were imported into a file geodatabase. From the file geodatabase, route events were created for the corresponding routes. Route events were exported into feature classes. The Both feature classes for Inc and Dec were merged into one data set and duplicate records were dissolved. The new feature class was then merged with the Inc, Dec, and Ramp feature classes to form one data set.

Data originated from the TRansportation Information and Planning Support (TRIPS) mainframe database which in turn then feeds into a sequel database which offers greater flexibility in reporting. The information is then extracted and exported into the Excel format.

Tunnels typically published in the State Highway Log that are along Washington State Department of Transportation (WSDOT) highways, including interstate, U.S., and state routes

Attribute:

Attribute_Label: BegAB

Attribute_Definition:

Beginning State Route Mile Post A (ahead) B (back) Indicator - Indicates whether the milepost value is the 'back' duplicate of a milepost value 'ahead' on the route. This is due to a change in route length caused by a re-alignment that would lengthen a route. Ahead values have an implied 'A' (blank) Back milepost values are shown as 'B'.

Attribute_Definition: Indicates if the highway is divided by a median.

Attribute:

Attribute_Label: EndAB

Attribute_Definition:

Ending State Route Mile Post A (ahead) B (back)-Indicator - Indicates whether the milepost value is the 'back' duplicate of a milepost value 'ahead' on the route. This is due to a change in route length caused by a re-alignment that would lengthen a route. Ahead values have an implied 'A' (blank) Back milepost values are shown as 'B'.

Related Route Qualifier - Up to a six character field that uniquely identifies the RelRouteType since there may be more than one of the same types of RelRouteType for a route: (Formerly the RRQ column).

Attribute_Definition_Source: WSDOT

Attribute:

Attribute_Label: RelRouteType

Attribute_Definition:

Related Route Type - a two character abbreviation for a type of roadway: (Formerly the RRT column).

Attribute_Definition_Source: WSDOT

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value_Definition_Source:

For attribute domain values and definitions please see the metadata for the attribute RRT.

Combination of numbers and letters that uniquely identifies the Related Roadway Type. May include State Route Milepost minus the decimal, back mile indicator "B", reversible "R", abbreviated name descriptions or other descriptors.

State Route Number - a three character number assigned to every State Route within or passing through the state of Washington: (Formerly the SR column).

Attribute_Definition_Source: WSDOT

Attribute:

Attribute_Label: StructDirToInv

Attribute_Definition:

StructureDirectionToInventory - A code that represents whether the structure is located in the (I) Increasing Milepost Direction of Travel, (D) Decreasing Milepost Direction of Travel or, (B) Both Milepost Directions of Travel.

Enumerated_Domain_Value_Definition: Both Milepost Directions of Travel

Attribute:

Attribute_Label: StructId

Attribute_Definition:

Structure ID used in the Washington State Bridge Information System.

Attribute:

Attribute_Label: StructNarrative

Attribute_Definition:

Bridge Structure Narrative - The narrative description of the Bridge Structure. Bridge Structure Description may include Trafficway Names, Roadside Features, or Rivers or other features that the Bridge Structure crosses.

TunnelNumber - A 2 part identifier that has a unique set of up to 10 alphanumeric characters. The first part of the Tunnel Number is the State Route associated with the tunnel, either as a part of the route, or the route is under or adjacent to the tunnel. The second part of the Tunnel Number is the number or number and alpha character combination assigned to the tunnel. If a Tunnel is less than 20 feet in length, the sequence number is carried to the 100th (0.01).

Attribute:

Attribute_Label: SHAPE.STLength()

Overview_Description:

Entity_and_Attribute_Overview:

This tabular data can be used with the State Route Linear Referencing System geospatial data set to depict the locations of tunnels along State Routes.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Washington State Department of Transportation, Office of Information Technology

Contact_Person: Jordyn Mitchell

Contact_Position: GIS Database Administrator

Contact_Address:

Address_Type: mailing

Address: PO Box 47430

City: Olympia

State_or_Province: WA

Postal_Code: 98504-7430

Country: US

Contact_Voice_Telephone: 360-705-7645

Contact_Electronic_Mail_Address: mitchejo@wsdot.wa.gov

Distribution_Liability:

The Washington State Department of Transportation shall not be liable for any activity involving this data with regard to lost profits or savings or any other consequential damages; or the fitness for use of the data for a particular purpose; or the installation of the data, its use, or the results obtained.